I'm going to pop the question!

I have decided to mix things up and throughout the confusion of our worlds this is the best time to do it! This boy makes me smile every second of the day and it wasn't until he told me his favorite memory that I knew I'd have to put an end to him being able to be single. We have talked about wedding business and my ring size so I know it's a thing just didn't take it serious as I do now. While he is distracted thinking of places to move and live and work I have reached out to a few close people to him. With their help I have found a ring, now I need a ring size. I am beyond happy and excited that it's getting harder to not tell him! I need this ring size and I don't know how to get it? Any advice? What about a female proposal is that ok in this generation yet?